A mattress for side sleepers? What about a mattress for back or stomach sleepers? Why is there a mattress designed specifically for side sleepers? The mattress must meet the unique needs that a side sleeper needs. The mattress should have a good temperature control so the person can sleep comfortably. The mattress should be reasonably priced and specifically designed for people who like to habitually sleep on their sides. The mattress must give this type of sleeper strong support for their backs, necks and legs, and feet. If the person likes to bend their legs while they sleep or they like to sleep with their legs straight the mattress must be able to meet these needs. This is why memory foam would be good to have so it will form to the person’s peculiar sleeping position.